Experimental Demonstration of Vanadium Dioxide Phase Change Thin Film Based Tunable Spiral Inductors

2020 ◽  
Vol 9 (7) ◽  
pp. 075003
Author(s):  
Liangyu Li ◽  
Eunsung Shin ◽  
Hamed Attariani ◽  
Weisong Wang ◽  
Guru Subramanyam
Keyword(s):  
Thin Film ◽  
Phase Change ◽  
Vanadium Dioxide ◽  
Experimental Demonstration ◽  
Spiral Inductors

scholarly journals Tunable Inductors Using Integrated Vanadium Dioxide Phase Change Thin Films

2018 ◽  
Vol 2018 ◽  
pp. 1-7 ◽  
Author(s):  
Liangyu Li ◽  
Weisong Wang ◽  
Eunsung Shin ◽  
Guru Subramanyam
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Critical Temperature ◽  
Phase Change ◽  
Vanadium Dioxide ◽  
Room Temperature ◽  
Tuning Range ◽  
Electrical Model ◽  
Temperature Changes ◽  
Tunable Inductors

This paper presents tunable inductors designed with vanadium dioxide (VO2) thin film to implement tunability. Two types of configurations, a single line coil inductor and a dual line coil inductor, are proposed. Tunable inductance is realized by thermally controlling VO2 thin film stub to be an insulator or a conductor. The measurements of inductors are taken in the frequencies range from 0.01 GHz to 10 GHz. The electrical model has been developed to derive the corresponding inductance. The results show that the tuning range is about 69% when the temperature changes from room temperature to above the critical temperature of 68°C.

The effect of an aluminum heat-sink layer on the laser-induced amorphization of SiOx/TeGeSn/SiOx phase-change recording films

1989 ◽  
Vol 47 ◽  
pp. 574-575
Author(s):  
Matthew R. Libera ◽  
Martin Chen
Keyword(s):  
Thin Film ◽  
Phase Change ◽  
Heat Sink ◽  
Multilayer Film ◽  
Glassy Phase ◽  
Film Structure ◽  
Glass Forming ◽  
Active Storage ◽  
Dielectric Layers ◽  
Amorphous States

Phase-change erasable optical storage is based on the ability to switch a micron-sized region of a thin film between the crystalline and amorphous states using a diffraction-limited laser as a heat source. A bit of information can be represented as an amorphous spot on a crystalline background, and the two states can be optically identified by their different reflectivities. In a typical multilayer thin-film structure the active (storage) layer is sandwiched between one or more dielectric layers. The dielectric layers provide physical containment and act as a heat sink. A viable phase-change medium must be able to quench to the glassy phase after melting, and this requires proper tailoring of the thermal properties of the multilayer film. The present research studies one particular multilayer structure and shows the effect of an additional aluminum layer on the glass-forming ability.

scholarly journals The metal–insulator phase change in vanadium dioxide and its applications

2021 ◽  
Vol 129 (24) ◽  
pp. 240902
Author(s):  
Haichang Lu ◽  
Stewart Clark ◽  
Yuzheng Guo ◽  
John Robertson
Keyword(s):  
Phase Change ◽  
Vanadium Dioxide ◽  
Metal Insulator

Electron Microscopy Study on Amorphous Ge-Sb-Te Thin Film for Phase Change Optical Recording

2003 ◽  
Vol 42 (Part 2, No. 10A) ◽  
pp. L1158-L1160 ◽  
Author(s):  
Muneyuki Naito ◽  
Manabu Ishimaru ◽  
Yoshihiko Hirotsu ◽  
Masaki Takashima
Keyword(s):  
Thin Film ◽  
Electron Microscopy ◽  
Phase Change ◽  
Microscopy Study ◽  
Electron Microscopy Study ◽  
Optical Recording

Atomistic and macroscopic characterization of nanoscale thin film liquid-vapor phase change phenomena

2021 ◽  
Vol 170 ◽  
pp. 107159
Author(s):  
Md Muntasir Alam ◽  
Md Shajedul Hoque Thakur ◽  
Mahmudul Islam ◽  
Mohammad Nasim Hasan ◽  
Yuichi Mitsutake ◽  
...  
Keyword(s):  
Thin Film ◽  
Phase Change ◽  
Vapor Phase ◽  
Nanoscale Thin Film ◽  
Phase Change Phenomena ◽  
Liquid Vapor
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